Aircraft Spruce 2018_2019_Catalog - Original

ALUMINUM – THE MOST COMMON GRADES
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1100 This grade is commercially pure aluminum. It is soft and
ductile and has excellent workability. It is ideal for applications
involving intricate forming because it work hardens more slowly
than other alloys. It is the most weldable of aluminum alloys, by
any method. It is non heat-treatable. It has excellent re sis tance to
corrosion and is widely used in the chemical and food processing
in dus tries. It responds well to decorative finishes which make it
suitable for giftware.
2011 This is the most free-machining of the common aluminum
alloys. It also has excellent mechanical properties. Thus, it is widely
used for automatic screw machine products in parts requiring extensive
ma chin ing.
2014 & 2017 The 2017 alloy combines excellent machinability
and high strength with the result that it is one of the most widely
used alloys for auto matic screw machine work. It is a tough, ductile
alloy suitable for heavy-duty structural parts. Its strength is slightly
less than that of 2014.
5052 This is the highest strength alloy of the more common non
heat-treatable grades. Fatigue strength is higher than most aluminum
alloys.In addition this grade has particularly good resistance
to marine at mos phere and salt water cor ro sion. It has excellent
workability. It may be drawn or formed into intricate shapes and its
slightly greater strength in the annealed condition minimizes tearing
that occurs in 1100 and 3003. Applications: Used in a wide variety of
applications from aircraft com po nents to home appliances, marine
and transportation industry parts, heavy duty cooking utensils and
equipment for bulk processing of food.
5083 & 5086 For many years there has been a need for
aluminum sheet and plate alloys that would offer, for high strength
welded ap pli ca tions, several distinct benefits over such alloys as
5052 and 6061. Some of the benefits fabricators have been seeking
are greater design ef fi ciency, better weld ing characteristics,
good forming properties, excellent re sis tance to corrosion and the
same economy as in other non heat-treatable alloys. Metallurgical
re search has developed 5083 and 5086 as superior weldable alloys
which fill these needs. Both alloys have virtually the same characteristics
with 5083 having slightly higher mechanical properties
due to the increased manganese content over 5086. Ap pli ca tions:
unfired pressure vessels, missile containers, heavy-duty truck and
trailer as sem blies, boat hulls and superstructures.
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2024 This is one of the best known of the high strength aluminum
alloys. With its high strength and excellent fatigue resistance, it is
used to advantage on struc tures and parts where good strength-toweight
ratio is desired. It is readily machined to a high finish. It is
readily formed in the annealed condition and may be subsequently
heat treated. Arc or gas welding is generally not recommended,
although this alloy may be spot, seam or flash welded. Since corrosion
resistance is relatively low, 2024 is commonly used with an
anodized finish or in clad form (“Alclad”) with a thin surface layer of
high purity aluminum. Applications: air craft structural components,
aircraft fittings, hardware, truck wheels and parts for the trans porta
tion industry.
3003 This is the most widely used of all aluminum alloys. It is
essentially com mer cially pure aluminum with the addition of man ganese
which increases the strength some 20% over the 1100 grade.
Thus, it has all the excellent char ac ter is tics of 1100 with higher
strength. It has excellent corrosion resistance. It has excellent workability
and it may be deep drawn or spun, welded or brazed. It is
non heat treatable. Applications: cooking utensils, decorative trim,
awnings, sid ing, storage tanks, chemi cal equip ment.
5005 This alloy is generally considered to be an improved version
of 3003. It has the same general mechanical properties as 3003 but
appears to stand up better in actual service. It is readily workable.
It can be deep drawn or spun, welded or brazed. It has excellent
corrosion resistance. It is non heat-treatable. It is well suited for
anodizing and has less tendency to streak or discolor. Applications
same as 3003.
6061 This is the least expensive and most versatile of the heattreatable
alu mi num alloys. It has most of the good qualities of aluminum.
It offers a range of good mechanical properties and good
corrosion resistance. It can be fabricated by most of the commonly
used tech niques. In the annealed condition it has good workability.
In the T4 condition fairly severe forming operations may be accomplished.
The full T6 properties may be obtained by artificial aging.
It is welded by all methods and can be furnace brazed. It is available
in the clad form (“Alclad”) with a thin surface layer of high purity
aluminum to improve both appearance and corrosion resistance.
Applications: This grade is used for a wide variety of products and
ap pli ca tions from truck bodies and frames to screw machine parts
and structural components. 6061 is used where ap pear ance and
better corrosion resistance with good strength are required.
6063 This grade is commonly referred to as the architectural
alloy. It was developed as an extrusion alloy with relatively high tensile
prop er ties, excellent finishing characteristics and a high degree
of re sis tance to corrosion. This alloy is most often found in various
interior and exterior architectural applications, such as windows,
doors, store fronts and assorted trim items. It is the alloy best suited
for anodizing applications - either plain or in a variety of colors.
7075 This is one of the highest strength aluminum alloys available.
Its strength-to weight ratio is excellent and it is ideally used for
highly stressed parts. It may be formed in the annealed condition
and sub se quently heat treated. Spot or flash welding can be used,
although arc and gas welding are not recommended. It is available
in the clad (“Alclad”) form to improve the corrosion resistance
with the over-all high strength being only mod er ate ly affected.
Applications: Used where high est strength is needed.
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